Studies on Monozygous Cattle Twins. XVII. Once-a-day milking compared with twice-a-day milking

Claesson, Olof; Hansson, A.; Gustafsson, Nils; Brännäng, E.

doi:10.1080/00015125909433307

Cited by 44 publications

(52 citation statements)

References 8 publications

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“…The changes in milk composition recorded in primiparous cows during period 1 agreed with those commonly observed with RMF (Claesson et al, 1959;Holmes et al, 1992;Carruthers et al, 1993). ).…”

Section: Performancesupporting

confidence: 78%

“…In analytical studies of short duration where the effects of previous milking intervals and residual milk were eliminated, physiologists have shown that milk secretion rate decreases curvilinearly with the duration of the milking interval (Wheelock et at, 1966) or is virtually constant over the first 16 h h after milking (cf Elliott, 1959;Labussi6re and Richard, 1965), which would correspond to about 13 h under conventional milking conditions (Elliott et al, 1960). Loss in milk yield resulting from milking omissions depends on the characteristics of these omissions: frequency (from 35% and 50% for I omission/day (Claesson et al, 1959;Holmes et al, 1992) to only slightly for I omission/week (Labussière et Coindet, 1968;Radcliffe et al, 1973)), stage of lactation at which omissions are imposed (Eldridge and Clark, 1978), and duration of implementation (Claesson et al, 1959). Milk loss also depends on the cows' characteristics (rank of lactation (Woolford et al, 1985), ), breed (Carruthers et al, 1993), anatomy of the udder ).…”

Section: Introductionmentioning

confidence: 99%

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Effects of milking three times in 2 days for 3 weeks in early lactation or in the declining phase on milk production in primiparous and multiparous dairy cows

Rémond¹,

Boit²

1997

Ann. Zootech.

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Summary — Fifty-two Holstein cows (26 primiparous) were assigned at calving to two milking frequencies: either twice daily (6 h and 17 h; control) or three times/2 days (6 h, 20 h and 14 h of the following day) during the first 3 weeks of lactation and then twice daily for at least 5 weeks. Nine weeks after the last calving (at the end of the 3rd month of lactation, on average) each of the four groups (primiparous or multiparous cows x twice daily milking/day or three times milking/2 days in early lactation) that were being milked twice daily, was divided into two sub-groups: one continued to be milked twice daily whereas the other was milked three times/2 days for 3 weeks and then twice daily. All cows were fed ad libitum the same complete diet based on grass silage. In early lactation, milking three times/2 days decreased the milk yield (3.4 kg/day; 16%), increased the fat (5.0 g/kg) and protein (2.2 g/kg) contents and decreased the lactose content (1.5 g/kg) in primiparous cows. In multiparous cows, the milk changes (-0.7 kg, + 0.9 g fat/kg, + 0.6 g proteins/kg) were not significant. The energy balance was not changed. During the declining phase of lactation, milking three times/2 days reduced secretion of milk, fat, proteins and lactose by about 10% in both categories of cows. The milk composition remained unchanged. Food intake was not affected but the energy balance was improved. dairy cow / milk production / milking frequency / stage of lactation / lactation rank Résumé — Effet de la traite 3 fois en 2 j pendant les 3 premières semaines de la lactation ou pendant la phase descendante, sur la production laitière de vaches primipares ou multipares. (vaches primipares ou multipares x traite deux fois/jour ou trois fois/2 j en début de lactation), qui était alors trait deux fois/jour, a été subdivisé en deux sous-lots : l'un a continué à être trait deux fois/jour alors que l'autre a été trait trois fois/2 j pendant 3 semaines, puis de nouveau deux fois par jour. Tous les animaux ont été alimentés à volonté avec la même ration complète à base d'ensilage d'herbe. La traite trois fois/2 j en début de lactation a, chez les primipares, diminué la quantité de lait sécré-tée de 3,4 kg/jour (16 %), augmenté les teneurs du lait en matières grasses (5,0 g/kg) et en protéines (2,2 g/kg), et diminué la teneur en lactose ( 1,5 g/kg). Chez les multipares, les modifications de sécré-tion laitière (-0,7 kg lait, + 0,9 g matières grasses et + 0,6 g de protéines/kg) n'ont pas été significatives. Le bilan énergétique n'a pas été modifié. Pendant la phase descendante de la lactation (début du 4 e mois de lactation en moyenne), la traite trois fois/2 j a réduit les quantités de

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Section: Performancesupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Effects of milking three times in 2 days for 3 weeks in early lactation or in the declining phase on milk production in primiparous and multiparous dairy cows

Rémond¹,

Boit²

1997

Ann. Zootech.

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“…Thus this practice did not give rise to any specific health problems, in particular mastitis, as is always the case with herds in good health (Claesson et al, 1959;Holmes et al, 1992;. As is often found in trials of short duration (less than 10 weeks) conducted after the lactation peak, OAD was not long enough to increase the cows' weight and/or fatness (O'Brien et al, 2002;Ferris et al, 2003;Gué guen et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

Once-a-day milking of Holstein and Montbéliarde cows for 7 weeks in mid-lactation

Pomiès

Martin

Chilliard

et al. 2007

Animal

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This study aimed at comparing the effects of once-a-day (OAD) milking during the descending phase of lactation between cows from the two most common breeds in France (Holstein and Montbé liarde). This study was carried on during two successive summers on a total of 50 Holstein and 38 Montbé liarde cows. During 7 weeks, half of the cows from each breed was milked OAD while the other half was milked twice a day (TAD). The animals were also followed for the next 3 or 5 weeks when they were all milked TAD, to check for any residual effect of OAD milking. The behaviour of OAD cows was observed around milking time. The incidence of diseases, the main performance variables (milk production, milk flow rate, live weight and body condition score), the detailed composition of milk (fat, protein, lactose, somatic cells, minerals, pH, free fatty acid (FFA), nitrogen fractions and enzymes) and some technological variables (clotting time and curd firmness) were measured on all cows. Some signs of disturbance were observed in the OAD cows at the time when milking was omitted: some cows mooed, some went close to the exit of the paddock, some leaked milk prior to milking. However, these signs disappeared after 2 days. After the experimental period, the live weight and the body condition score of TAD and OAD cows did not differ significantly. OAD cows produced 4.5 kg/day less than TAD (P , 0.001), this being more marked in Holstein (5.7 kg/day, P , 0.001) than Montbé liarde (3.3 kg/day, P , 0.001) cows. The milk contents of fat, whey protein, casein, total protein and phosphorus, and its plasminogen activity, were higher with OAD cows while lactose and FFA contents, and lipoprotein lipase activity were lower, with no interaction observed with breed. During the subsequent 3 weeks, when all cows were again milked TAD, OAD cows still produced 1.7 kg/day less milk (P , 0.01) with slightly higher fat and protein content. OAD milking for 7 weeks during the descending phase of lactation decreased milk production but increased milk content of most components, with a low residual effect. Montbé liarde cows were less affected by OAD milking than Holstein cows.

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“…There is conflicting literature on this aspect: an increase in somatic cell count [17,22,30,40], no effect [25,26,41], increase or not depending on whether the baseline cell count was high or low [21]. Trials overall nonetheless showed the absence of an impact on mastitis incidence [11,17,30]. However, the greater stretching of udders observed here under the effect of a larger quantity of milk built up after 24-hours of secretion could, in the long run, lead to a higher incidence of collapsed udders.…”

Section: Discussionmentioning

confidence: 99%

Combined effects of once-daily milking and feeding level in the first three weeks of lactation on milk production and enzyme activities, and nutritional status, in Holstein cows

et al. 2002

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-Twenty-four multiparous cows were divided into 4 groups immediately after calving according to a 2 × 2 factorial design: 2 milking frequencies (1 daily [morning only] milking for the first three weeks of lactation, then 2 daily milkings vs. 2 daily milkings throughout) under two diet energy concentrations (normal or low). The trial lasted 30 weeks, on average, and ended in the pasture on 28 May 2000. During the winter period, the cows were housed together in a free-stall barn, and were given complete rations ad libitum. The cows that were not milked were significantly more vocal than the controls, close to the omitted milking, and in a large number of them, milk leaked from the udder. Once-daily milking gradually reduced the amount of milk secreted in relation to that produced by cows milked twice a day, with differences of 8.5 kg·d -1 (P < 0.01) at week 3. As early as the first week of resumption of twice-daily milking, that difference ceased to be statistically significant but amounted to 1.3 kg·d -1 (P > 0.10) throughout the rest of the trial. Once-daily milking did not affect the contents of milk fat, true protein, serum albumin and lactose contents or somatic cell count, plasmin activity and plasminogen-derived activity. That treatment also increased the G1 immunoglobulin concentration (P = 0.02; measured at week 3) and reduced milk lipoprotein lipase activity. Once-daily milking improved the nutritional status at the beginning of lactation (reduced live weight and body condition losses, and increased the computed energy balance) and had no effect on the ration intake. The normal-energy diet produced expected results, in relation to the low-energy diet: a significant increase in intake (1.2 kg DM·d -1 ), milk yield (3.1 kg·d -1 ), milk protein content (2.0 g·kg -1 ), and nutritional indices, in particular. The decrease in milk yield induced by once-daily milking during the (0)4 73 98 13 80; e-mail: remond@gentiane.enitac.fr first three weeks of lactation was 5.5 kg·d -1 in the low-energy group and 8.5 kg·d -1 for the normal energy group (non-significant interaction; P > 0.10). once-daily milking / level of feeding / milk production / enzyme activities / nutritional status Résumé -Effets de la traite une fois par jour combinée au niveau d'alimentation pendant les trois premières semaines de la lactation sur la production et les activités enzymatiques du lait, et l'état nutritionnel, chez des vaches Holstein. Vingt-quatre vaches multipares ont été réparties dès le vêlage en 4 lots, selon un schéma factoriel 2 × 2 : 2 fréquences de traite (1 traite par jour pendant les 3 premières semaines de lactation, puis 2 traites par jour vs. 2 traites par jour en permanence) × 2 concentrations énergétiques de la ration (normale ou basse). L'essai a duré en moyenne 30 semaines et s'est terminé au pâturage, le 28 mai 2000. Pendant la période hivernale, les vaches étaient logées ensemble dans une stabulation libre à logettes et recevaient à volonté une ration complète. La traite omise était celle du soir. Les vac...

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Studies on Monozygous Cattle Twins. XVII. Once-a-day milking compared with twice-a-day milking

Cited by 44 publications

References 8 publications

Effects of milking three times in 2 days for 3 weeks in early lactation or in the declining phase on milk production in primiparous and multiparous dairy cows

Effects of milking three times in 2 days for 3 weeks in early lactation or in the declining phase on milk production in primiparous and multiparous dairy cows

Once-a-day milking of Holstein and Montbéliarde cows for 7 weeks in mid-lactation

Combined effects of once-daily milking and feeding level in the first three weeks of lactation on milk production and enzyme activities, and nutritional status, in Holstein cows

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